CodeZapper
is a set of Word macros that will allow you to reduce greatly the
number of "slight formatting differences" in your Word
documents.

Those
"glitches" in formatting are most often created by
conversion tools that convert PDF files into editable Word files.To
try and reproduce the layout of the original PDF file, these software
converters will "tweak and torture" font and paragraph
settings, sizes, colours, etc.And these constant "adjustments"
in the middle of sentences are to be marked as "tags" in
CAT tools.

You
can download CodeZapper from
http://kilgray.com/resource-center/external-tools

Quick
instructions:

Copy
the .dot macro template into the default Word “Startup” folder.

Use
the “CZL” button. It should be enough.

If
not, use the “PDFFix” button. For spurious line breaks use
“PDFTidy”

Now,
use the "cleaned" document for translation in memoQ. it
should show a lot less "extraneous tags".